N98\Util\Console\Helper\MagentoHelper::detectMagentoFailed PHP Method

    public function detectMagentoFailed()
    {
        vfsStream::setup('root');
        vfsStream::create(array('htdocs' => array()));
        $helper = $this->getHelper();
        // vfs cannot resolve relative path so we do 'root/htdocs' etc.
        $helper->detect(vfsStream::url('root'));
        $this->assertNull($helper->getRootFolder());
    }